Here is more on the research explaining this biological phenomenon:

According to research conducted by Michigan State University zoologist Ashlee Rowe, the mice actually transform the venom into a painkiller.

“We don’t want to try to sound too cute or anything, but it is sort of like an evolutionary martial art, where the grasshopper mice are turning the tables. They’re using their opponents’ strength against them,” Rowe said in October.

commenter “Half” has this to say in regards to the mouse mechanism:

It’s interesting – although I don’t clearly see how that can be turned into a better form of analgesic – this mouse most likely has a specifically evolved receptor to recognise the scorpion venom and close the sodium channels, as a consequence of cohabitation with scorpions over millions of years: since humans don’t have specific receptors on our cells to function in this way, how are we going to design a novel, receptor specific drug? Unless we are talking about gene therapy I don’t see how this discovery can be developed for human medicine. I’m curious, and will try to find the paper mentioned, but did anyone else have questions along these lines after watching this?

We hope you enjoyed the video and don’t underestimate your opponent!

thanks to live science for the great write-up